データ圧縮に基づく高速パラメタ化文字列照合技法の開発

2013 Fiscal Year Annual Research Report

• Project/Area Number: 23700022
• Research Institution: Kyushu University
• Principal Investigator: 稲永 俊介 九州大学, システム情報科学研究科(研究院, 准教授 (60448404)
• Keywords: アルゴリズム / 文字列処理 / データ圧縮

Research Abstract

文字列とは，記号の連鎖のことである．コンピュータ上で取り扱うデータの多くは，文字列とみなすことができる．そのため，文字列データを高速かつ省領域で処理する基盤技術の開発は，情報爆発時代における喫緊の課題となっている．本研究では，文法圧縮と呼ばれる圧縮形式で記述されたデータに対し，それを陽に展開することなく，高度な情報処理を行うための基盤技術を開発した．今年度は特に，入力文法圧縮サイズの低次多項式時間で，高度情報処理を実行可能なアルゴリズムを開発した．具体的には，以下の研究成果を得た．(1) SLP 圧縮文字列上で動作する Lyndon 分解アルゴリズム，(2) LZ78 圧縮文字列上で動作する Lyndon 分解アルゴリズム，(3) SLP 圧縮文字列上で動作する連（繰り返し構造）発見アルゴリズム，(4) SLP 圧縮文字列上で動作するギャップ着き回文発見アルゴリズム，(5) SLP 圧縮文字列上で動作する LZ78 分解アルゴリズム，(6) SLP 圧縮文字列上で動作する畳み込み計算アルゴリズム．

Research Products

• [Journal Article] Faster Compact On-Line Lempel-Ziv Factorization (2014)
  • Author(s): Jun'ichi Yamamoto, Tomohiro I, Hideo Bannai, Shunsuke Inenaga, and Masayuki Takeda
  • Journal Title: Proc. the 31st Symposium on Theoretical Aspects of Computer Science (STACS 2014) Pages: 675-686
  • DOI: 10.4230/LIPIcs.STACS.2014.675
  • Peer Reviewed
• [Journal Article] Shortest Unique Substrings Queries in Optimal Time (2014)
  • Author(s): Kazuya Tsuruta, Shunsuke Inenaga, Hideo Bannai, and Masayuki Takeda
  • Journal Title: Proc. the 40th International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM 2014), Lecture Notes in Computer Science Volume: 8327 Pages: 503-513
  • DOI: 10.1007/978-3-319-04298-5_44
  • Peer Reviewed
• [Journal Article] Inferring Strings from Suffix Trees and Links on a Binary Alphabet (2014)
  • Author(s): Tomohiro I, Hideo Bannai, Shunsuke Inenaga and Masayuki Takeda
  • Journal Title: Discrete Applied Mathematics Volume: 163(3) Pages: 316-325
  • DOI: 10.1016/j.dam.2013.02.033
  • Peer Reviewed
• [Journal Article] Faster Lyndon Factorization Algorithms for SLP and LZ78 Compressed Text (2013)
  • Author(s): Tomohiro I, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai and Masayuki Takeda
  • Journal Title: In Proc. the 20th Symposium on String Processing and Information Retrieval (SPIRE 2013), Lecture Notes in Computer Science Volume: 8214 Pages: 174-185
  • DOI: 10.1007/978-3-319-02432-5_21
  • Peer Reviewed
• [Journal Article] Detecting Regularities on Grammar-compressed Strings (2013)
  • Author(s): Tomohiro I, Wataru Matsubara, Kouji Shimohira, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda, Kazuyuki Narisawa, Ayumi Shinohara
  • Journal Title: In Proc. the 38th International Symposium on Mathematical Foundations of Computer Science (MFCS 2013), Lecture Notes in Computer Science Volume: 8087 Pages: 571-582
  • DOI: 10.1007/978-3-642-40313-2_51
  • Peer Reviewed
• [Journal Article] Compressed Automata for Dictionary Matching (2013)
  • Author(s): Tomohiro I, Takaaki Nishimoto, Shunsuke Inenaga, Hideo Bannai and Masayuki Takeda
  • Journal Title: In Proc. the 18th International Conference on Implementation and Application of Automata (CIAA 2013), Lecture Notes in Computer Science Volume: 7982 Pages: 319-330
  • DOI: 10.1007/978-3-642-39274-0_28
  • Peer Reviewed
• [Journal Article] Converting SLP to LZ78 in almost linear time (2013)
  • Author(s): Hideo Bannai, Pawel Gawrychowski, Shunsuke Inenaga, and Masayuki Takeda
  • Journal Title: In Proc. 24th Annual Symposium on Combinatorial Pattern Matching (CPM 2013), Lecture Notes in Computer Science Volume: 7922 Pages: 38-49
  • DOI: 10.1007/978-3-642-38905-4_6
  • Peer Reviewed
• [Journal Article] Efficient Lyndon factorization of grammar compressed text (2013)
  • Author(s): Tomohiro I, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai and Masayuki Takeda
  • Journal Title: In Proc. 24th Annual Symposium on Combinatorial Pattern Matching (CPM 2013), Lecture Notes in Computer Science Volume: 7922 Pages: 153-164
  • DOI: 10.1007/978-3-642-38905-4_16
  • Peer Reviewed
• [Journal Article] Palindrome Pattern Matching (2013)
  • Author(s): Tomohiro I, Shunsuke Inenaga and Masayuki Takeda
  • Journal Title: Journal of Discrete Algorithms Volume: 18 Pages: 89-99
  • DOI: 10.1016/j.jda.2012.07.006
  • Peer Reviewed
• [Journal Article] Computing Reversed Lempel-Ziv Factorization Online (2013)
  • Author(s): Shiho Sugimoto, Tomohiro I, Shunsuke Inenaga, Hideo Bannai, and Masayuki Takeda
  • Journal Title: Proc. the Prague Stringology Conference 2013 (PSC 2013) Pages: 107-118
  • Peer Reviewed
• [Presentation] Faster Compact On-Line Lempel-Ziv Factorization (2014)
  • Author(s): Jun'ichi Yamamoto, Tomohiro I, Hideo Bannai, Shunsuke Inenaga, and Masayuki Takeda
  • Organizer: 31st Symposium on Theoretical Aspects of Computer Science (STACS 2014)
  • Place of Presentation: Lyon, France
  • Year and Date: 20140305-08
• [Presentation] 動的でコンパクトな索引構造 (2014)
  • Author(s): 松岡 禎明，井 智弘，坂内 英夫，稲永 俊介，竹田 正幸
  • Organizer: 冬のLAシンポジウム2013
  • Place of Presentation: 京都市
  • Year and Date: 20140128-20140130
• [Presentation] 省スペースオンラインLZ分解 (2014)
  • Author(s): 山本 淳一，井 智弘，坂内 英夫，稲永 俊介，竹田 正幸
  • Organizer: 冬のLAシンポジウム2013
  • Place of Presentation: 京都市
  • Year and Date: 20140128-20140130
• [Presentation] 回文による文字列の分解と被覆 (2014)
  • Author(s): 杉本 志穂，井 智弘，稲永 俊介，坂内 英夫，竹田 正幸
  • Organizer: 冬のLAシンポジウム2013
  • Place of Presentation: 京都市
  • Year and Date: 20140128-20140130
• [Presentation] LZ78圧縮されたテキストに対するLyndon分解アルゴリズム (2014)
  • Author(s): 井 智弘，中島 祐人，稲永 俊介，坂内 英夫，竹田 正幸
  • Organizer: 冬のLAシンポジウム2013
  • Place of Presentation: 京都市
  • Year and Date: 20140128-20140130
• [Presentation] 連長圧縮と接尾辞配列について (2014)
  • Author(s): 玉腰 裕也，後藤 啓介，坂内 英夫，稲永 俊介，竹田 正幸
  • Organizer: 冬のLAシンポジウム2013
  • Place of Presentation: 京都市
  • Year and Date: 20140128-20140130
• [Presentation] Shortest Unique Substrings Queries in Optimal Time (2014)
  • Author(s): Kazuya Tsuruta, Shunsuke Inenaga, Hideo Bannai, and Masayuki Takeda
  • Organizer: 40th International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM 2014)
  • Place of Presentation: High Tatras, Slovakia
  • Year and Date: 20140125-30
• [Presentation] Faster Lyndon Factorization Algorithms for SLP and LZ78 Compressed Text (2013)
  • Author(s): Tomohiro I, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai and Masayuki Takeda
  • Organizer: 20th Symposium on String Processing and Information Retrieval (SPIRE 2013)
  • Place of Presentation: Jerusalem, Israel
  • Year and Date: 20131007-09
• [Presentation] Computing Reversed Lempel-Ziv Factorization Online (2013)
  • Author(s): Shiho Sugimoto, Tomohiro I, Shunsuke Inenaga, Hideo Bannai, and Masayuki Takeda
  • Organizer: Prague Stringology Conference 2013 (PSC 2013)
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 20130902-03
• [Presentation] Detecting Regularities on Grammar-compressed Strings (2013)
  • Author(s): Tomohiro I, Wataru Matsubara, Kouji Shimohira, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda, Kazuyuki Narisawa, Ayumi Shinohara
  • Organizer: 38th International Symposium on Mathematical Foundations of Computer Science (MFCS 2013)
  • Place of Presentation: Klosterneuburg, Austria
  • Year and Date: 20130826-30
• [Presentation] Compressed Automata for Dictionary Matching (2013)
  • Author(s): Tomohiro I, Takaaki Nishimoto, Shunsuke Inenaga, Hideo Bannai and Masayuki Takeda
  • Organizer: 18th International Conference on Implementation and Application of Automata (CIAA 2013)
  • Place of Presentation: Halifax, Canada.
  • Year and Date: 20130716-20130719
• [Presentation] Lyndon分解の逆問題 (2013)
  • Author(s): 中島祐人，岡部駿志，井智弘，稲永俊介，坂内英夫，竹田正幸
  • Organizer: 夏のLAシンポジウム2013
  • Place of Presentation: 福岡市
  • Year and Date: 20130716-20130718
• [Presentation] Converting SLP to LZ78 in almost linear time (2013)
  • Author(s): Hideo Bannai, Pawel Gawrychowski, Shunsuke Inenaga, and Masayuki Takeda
  • Organizer: 24th Annual Symposium on Combinatorial Pattern Matching (CPM 2013)
  • Place of Presentation: Bad Herrenalb, Germany
  • Year and Date: 20130617-19
• [Presentation] Efficient Lyndon factorization of grammar compressed text (2013)
  • Author(s): Tomohiro I, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai and Masayuki Takeda
  • Organizer: 24th Annual Symposium on Combinatorial Pattern Matching (CPM 2013)
  • Place of Presentation: Bad Herrenalb, Germany
  • Year and Date: 20130617-19